Buried ice in the Richardson's – Remnant Laurentide ice or meltwater?
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Buried ice in the Richardson's Buried ice in the Richardson's – – Remnant Laurentide ice or Remnant Laurentide ice or meltwater? meltwater? , D., 2002. , D., 2002. and preservation of buried ice in the and preservation of buried ice in the son Mountains, NWT, Canada. son Mountains, NWT, Canada. s, University of Ottawa s, University of Ottawa . . , D. Lauriol, B. Clark, I.D. and Bjornson, J , D. Lauriol, B. Clark, I.D. and Bjornson, J aration, aration, Canadian J. Earth Sc Canadian J. Earth Sc . .
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Buried ice in the Richardson's – Remnant Laurentide ice or meltwater?. Lacelle, D., 2002. Origin and preservation of buried ice in the Richardson Mountains, NWT, Canada. MSc Thesis, University of Ottawa . Lacelle, D. Lauriol, B. Clark, I.D. and Bjornson, J., 2002. - PowerPoint PPT Presentation
Transcript of Buried ice in the Richardson's – Remnant Laurentide ice or meltwater?
Buried ice in the Richardson's –Buried ice in the Richardson's –Remnant Laurentide ice or Remnant Laurentide ice or meltwater?meltwater?
Lacelle, D., 2002.Lacelle, D., 2002.Origin and preservation of buried ice in theOrigin and preservation of buried ice in theRichardson Mountains, NWT, Canada.Richardson Mountains, NWT, Canada.MSc Thesis, University of OttawaMSc Thesis, University of Ottawa..
Lacelle, D. Lauriol, B. Clark, I.D. and Bjornson, J., 2002.Lacelle, D. Lauriol, B. Clark, I.D. and Bjornson, J., 2002.In preparation, In preparation, Canadian J. Earth ScCanadian J. Earth Sc..
Bon
ne t P
lume C
reek
Will
ow R
iver
< 2 0 0 m
2 0 0 - 5 0 0 m
5 0 0 - 9 0 0 m
> 9 0 0 m
6 8 ° N
6 8 ° 5 ’ NS ite 00 -1
S ite 00 -2
S ite 00 -4
S ite 00 -3
1 3 6 ° W
Dashed line= LGM
1818O profilesO profiles
2040 ± 50 B P
50
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450
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550
600
8240 ± 70 BP
100
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650
T h aw S lu m p 00 -4
0
50
0
T h aw S lu m p 00 -2B
-29 -28 -27
T h aw S lu m p 00 -2A
270 ± 50 B P
-29 -27
1 8O (‰ )-25
F reez in gcy c le s
M o lecu la rd iffu s io n
-23 -21
50
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0
L eg en d
A ctive layer
U nit 2 : D iam icton
U nit 1 : D ebr is-r ich ice
D ista n ce (k m )
0 1 0 2 0 3 0 4 0 5 0
t1
w a te r -sa tu r a te dt ill
t2
t1t2
A g g r a d in g p e r m a fro s t
Genesis of ground iceGenesis of ground ice
Rampton, V.N., 1974.
